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Updated: June 8, 2025
When we compare this embryonic condition, the sandal-shaped foetus, with the developed lancelet, we may say that the amphioxus is, in a certain sense, a permanent sandal-embryo, or a permanent embryonic form of the Acrania; it never rises above a low grade of development which we have long since passed. The body is pointed at both ends, but much compressed at the sides. There is no trace of limbs.
But it is equally true, as Gratiolet remarks, that, in its widely open sylvian fissure, it differs from the brain of any actual marmoset. No doubt it would be much more similar to the brain of an advanced foetus of a marmoset. But we know nothing whatever of the development of the brain in the marmosets.
The bag of waters helps dilate the parts much easier than the foetus could do it alone. When the bag breaks the water lubricates the parts so as to make the passage of the child easier. When it breaks, as it sometimes does, at the beginning of labor we have what is termed a "dry labor." This usually is much slower than it would be otherwise.
When the foetus is farther advanced, when the bones can be distinguished from the fleshy parts and movements take place, then it also has a heart which pulsates, and, as I have said, throws blood by either ventricle from the vena cava into the arteries. These points will be found elsewhere confirmed by numerous observations on the formation of the foetus.
It is always best to give the sow a separate pen that is dry and clean, and away from the other animals. All danger from injury to the mother and young should be guarded against. ABORTION. The expulsion of the foetus at any time during the period of gestation, when it is not sufficiently developed to live independently of the mother, is termed abortion.
Uplifted by me, this weapon of mine shall fall on the foetus that is in the womb of Virata's daughter, upon that foetus which thou, O Krishna, art desirous of protecting. "The holy one said, 'The fall of this mighty weapon will not be fruitless. The foetus will die. But being dead, it will live again and have a long life!
The tendency, however, acts under limiting conditions; and recognition of them will explain some apparent exceptions. In the human foetus, as in the lower vertebrata, the eyes are placed one on each side of the head.
"I am not ashamed to name the parts of the body wherein the foetus is formed and nourished; and why indeed should I be, since God was not ashamed to create them?" None of the great writers of the Church were prudish.
The examiner stands with his back toward the animal's head, and on the right side of the cow and the left side of the mare. The palm of the hand is applied against the abdominal wall, about eight or ten inches in front of the stifle and just below the flank. Moderate pressure is used, and if a hard, voluminous mass is felt, or if the foetus moves, it is a sure sign that the animal is pregnant.
Much may be done in the way of preventing this habit of abortion among cows. The foetus must be got rid of immediately. It should be buried deep, and far from the cow-pasture. Proper means should be taken to hasten the expulsion of the placenta.
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